Water Pump Pulley - Polished BS80120 Product:1-Groove Suit SB Chev With Short Water Pump which gives them about 2000%

which gives them about 2000% (that's twenty times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice)

12-Point S/Sfits BB Chev (With Standard 2-Piece Pan Gasket)

Stainless Steel Number Plate Bolts with built in Lights5/16" UNC Threads

680" maximum lift Max RPM 7200-7400 10° Manley Steel Retainers 1

Water Pump Pulley - Polished BS80120 Product:1-Groove Suit SB Chev With Short Water Pump which gives them about 2000%Water Pump Pulley Polished1 Groove Suit SB Chev With Short Water Pump BS80120 80120 Billet Specialties water pump pulleys are CNC machined from forged 6061 T6 aluminum for the ultimate in strength and balance. Designed for use with v groove style belts on Chevy engines, each pulley is polished to a mirror finish and includes stainless steel mounting hardware. Billet pulley nose cones are sold separeately.